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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2017-11-08 16:42:31 -0600
committerMark Brown <broonie@kernel.org>2017-11-09 11:42:26 +0000
commite0d746cc0155a51cc24eb56286cd21a2c5aa4985 (patch)
tree483e905cc201fec43356a82fc939c6787ea64cc6 /sound
parent2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff)
downloadlinux-e0d746cc0155a51cc24eb56286cd21a2c5aa4985.tar.bz2
ASoC: da7213: add support for DSP modes
DSP modes are documented in the data sheet but not enabled in the driver. The work-around already implemented for DA7218/9 is also required to make sure the bit clock handling in DSP modes follows ASoC conventions. Tested with ARD-AUDIO-DA7212 and Minnowmax Turbot boards Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/da7213.c58
-rw-r--r--sound/soc/codecs/da7213.h1
2 files changed, 49 insertions, 10 deletions
diff --git a/sound/soc/codecs/da7213.c b/sound/soc/codecs/da7213.c
index cc0b2d2eaf15..41d9b1da27c2 100644
--- a/sound/soc/codecs/da7213.c
+++ b/sound/soc/codecs/da7213.c
@@ -1220,6 +1220,7 @@ static int da7213_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
struct snd_soc_codec *codec = codec_dai->codec;
struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
u8 dai_clk_mode = 0, dai_ctrl = 0;
+ u8 dai_offset = 0;
/* Set master/slave mode */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
@@ -1234,17 +1235,46 @@ static int da7213_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
}
/* Set clock normal/inverted */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- case SND_SOC_DAIFMT_NB_IF:
- dai_clk_mode |= DA7213_DAI_WCLK_POL_INV;
- break;
- case SND_SOC_DAIFMT_IB_NF:
- dai_clk_mode |= DA7213_DAI_CLK_POL_INV;
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ case SND_SOC_DAIFMT_LEFT_J:
+ case SND_SOC_DAIFMT_RIGHT_J:
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ dai_clk_mode |= DA7213_DAI_WCLK_POL_INV;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ dai_clk_mode |= DA7213_DAI_CLK_POL_INV;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ dai_clk_mode |= DA7213_DAI_WCLK_POL_INV |
+ DA7213_DAI_CLK_POL_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
break;
- case SND_SOC_DAIFMT_IB_IF:
- dai_clk_mode |= DA7213_DAI_WCLK_POL_INV | DA7213_DAI_CLK_POL_INV;
+ case SND_SOC_DAI_FORMAT_DSP_A:
+ case SND_SOC_DAI_FORMAT_DSP_B:
+ /* The bclk is inverted wrt ASoC conventions */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ dai_clk_mode |= DA7213_DAI_CLK_POL_INV;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ dai_clk_mode |= DA7213_DAI_WCLK_POL_INV |
+ DA7213_DAI_CLK_POL_INV;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ dai_clk_mode |= DA7213_DAI_WCLK_POL_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
break;
default:
return -EINVAL;
@@ -1261,6 +1291,13 @@ static int da7213_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
case SND_SOC_DAIFMT_RIGHT_J:
dai_ctrl |= DA7213_DAI_FORMAT_RIGHT_J;
break;
+ case SND_SOC_DAI_FORMAT_DSP_A: /* L data MSB after FRM LRC */
+ dai_ctrl |= DA7213_DAI_FORMAT_DSP;
+ dai_offset = 1;
+ break;
+ case SND_SOC_DAI_FORMAT_DSP_B: /* L data MSB during FRM LRC */
+ dai_ctrl |= DA7213_DAI_FORMAT_DSP;
+ break;
default:
return -EINVAL;
}
@@ -1271,6 +1308,7 @@ static int da7213_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
snd_soc_write(codec, DA7213_DAI_CLK_MODE, dai_clk_mode);
snd_soc_update_bits(codec, DA7213_DAI_CTRL, DA7213_DAI_FORMAT_MASK,
dai_ctrl);
+ snd_soc_write(codec, DA7213_DAI_OFFSET, dai_offset);
return 0;
}
diff --git a/sound/soc/codecs/da7213.h b/sound/soc/codecs/da7213.h
index 16ef56f77cd4..5a78dba1dcb5 100644
--- a/sound/soc/codecs/da7213.h
+++ b/sound/soc/codecs/da7213.h
@@ -188,6 +188,7 @@
#define DA7213_DAI_FORMAT_I2S_MODE (0x0 << 0)
#define DA7213_DAI_FORMAT_LEFT_J (0x1 << 0)
#define DA7213_DAI_FORMAT_RIGHT_J (0x2 << 0)
+#define DA7213_DAI_FORMAT_DSP (0x3 << 0)
#define DA7213_DAI_FORMAT_MASK (0x3 << 0)
#define DA7213_DAI_WORD_LENGTH_S16_LE (0x0 << 2)
#define DA7213_DAI_WORD_LENGTH_S20_LE (0x1 << 2)